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Bangkok, Thailand · Tropical

Bangkok: best months to visit

December (5.9/10) · September (4.5/10).

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 13.75°N · 100.52°E
⚡ Quick answer
December
Depends on your goals
5.9/10
☀️ Dec
Top score (5.9/10)
🌤️ Nov
Alt. (5.8/10)
Sep
Plus rude (4.5/10)
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo par Aurélien Grimpard via Unsplash
Decide

When to visit Bangkok?

The decision rests on several criteria. Climate score, tourist crowds and feasible activities.

Verdict: In Bangkok, December and November clearly stand out. September concentrates the least favourable conditions.
Top & avoid
🏆 December · 5.9 November · 5.8 January · 5.7 February · 5.4 ⚠️ September · 4.5
5.7
Jan
5.4
Feb
5.3
Mar
4.7
Apr
4.6
May
4.6
Jun
4.8
Jul
4.5
Aug
4.5
Sep
4.8
Oct
5.8
Nov
5.9
Dec
Best period · ≥ 7 Decent period · 4 – 7 Tough conditions · < 4

What you grasp in 5 seconds

Bangkok offers 0 comfortable months, without any month really to avoid. The gap stays moderate: 5.9 in December vs 4.5 in September.

What to check next

Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.

Next action

Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.

Compare the 12 months By your project

How we calculate the score

The score combines 4 weighted criteria using 10 years of real climate data (ERA5).

Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →

Understand

Compare all 12 months

Month-by-month details: temperature, rain, sunshine, score and verdict.

✅ 0 comfortable months ()
MonthT° minT° maxRain %mm/daySunScoreVerdict
🌥️ January →23°C32°C6%0.8mm7.0h5.7/10Decent period
🌥️ February →24°C33°C7%1.2mm7.6h5.4/10Decent period
🌥️ March →26°C33°C11%1.4mm7.6h5.3/10Decent period
🌥️ April →27°C35°C18%2.8mm7.6h4.7/10Decent period
🌥️ May →27°C33°C40%5.8mm6.3h4.6/10Decent period
🌥️ June →26°C32°C45%5.1mm5.3h4.6/10Decent period
🌥️ July →26°C31°C45%6.7mm4.5h4.8/10Decent period
🌥️ August →25°C32°C50%6.2mm4.2h4.5/10Decent period
🌥️ September →25°C31°C60%9.9mm4.3h4.5/10Decent period
🌥️ October →24°C31°C46%7.9mm5.1h4.8/10Decent period
🌥️ November →24°C31°C13%2.7mm6.5h5.8/10Decent period
🌥️ December →23°C31°C3%0.6mm6.9h5.9/10Decent period
🌥️ January
5.7/10
T°23°C / 32°C
Rain %6%
Sun7.0h
Decent period
🌥️ February
5.4/10
T°24°C / 33°C
Rain %7%
Sun7.6h
Decent period
🌥️ March
5.3/10
T°26°C / 33°C
Rain %11%
Sun7.6h
Decent period
🌥️ April
4.7/10
T°27°C / 35°C
Rain %18%
Sun7.6h
Decent period
🌥️ May
4.6/10
T°27°C / 33°C
Rain %40%
Sun6.3h
Decent period
🌥️ June
4.6/10
T°26°C / 32°C
Rain %45%
Sun5.3h
Decent period
🌥️ July
4.8/10
T°26°C / 31°C
Rain %45%
Sun4.5h
Decent period
🌥️ August
4.5/10
T°25°C / 32°C
Rain %50%
Sun4.2h
Decent period
🌥️ September
4.5/10
T°25°C / 31°C
Rain %60%
Sun4.3h
Decent period
🌥️ October
4.8/10
T°24°C / 31°C
Rain %46%
Sun5.1h
Decent period
🌥️ November
5.8/10
T°24°C / 31°C
Rain %13%
Sun6.5h
Decent period
🌥️ December
5.9/10
T°23°C / 31°C
Rain %3%
Sun6.9h
Decent period
📊 Quick read
Optimal window
No month > 7
Good transition
—
Tough period
none
🌡️ Detailed conditions (December)
🌡️ Feel
Warm
☀️ UV
6.7 · Moderate-Strong
💧 Humidity feel
19°C · Humid
☔ Rain
3% · 0.6 mm/day
🌅 Sunshine
6.9h/day
Week by week

Bangkok week by week: your odds of avoiding rain

For each week of the year: in how many years out of 10 it was mostly dry (at most 2 rainy days), 2016 to 2025.

Safest week: Dec 17 to Dec 23, mostly dry in 10 years out of 10 (0.0 rainy day(s) on average).

Most exposed: Sep 17 to Sep 23, mostly dry in 0 years out of 10 (4.7 rainy days on average).

Number = years out of 10 with at most 2 rainy days in the week. Source: ERA5 reanalysis (ECMWF) via Open-Meteo, daily data 2016-2025. Rainy day = at least 1 mm, as everywhere on the site.
JanJan 110/1031°CJan 89/1031°CJan 1510/1032°CJan 2210/1032°CJan 2910/1032°C
FebFeb 510/1032°CFeb 129/1032°CFeb 199/1032°CFeb 2610/1033°C
MarMar 59/1034°CMar 1210/1034°CMar 199/1034°CMar 268/1034°C
AprApr 27/1034°CApr 98/1035°CApr 169/1035°CApr 237/1034°CApr 307/1034°C
MayMay 74/1034°CMay 143/1033°CMay 214/1033°CMay 283/1032°C
JunJun 44/1033°CJun 115/1032°CJun 184/1033°CJun 253/1032°C
JulJul 22/1032°CJul 94/1031°CJul 163/1031°CJul 232/1031°CJul 303/1031°C
AugAug 64/1032°CAug 133/1032°CAug 202/1032°CAug 272/1031°C
SepSep 32/1031°CSep 101/1031°CSep 170/1031°CSep 243/1031°C
OctOct 11/1031°COct 83/1031°COct 155/1031°COct 225/1031°COct 297/1031°C
NovNov 59/1031°CNov 128/1032°CNov 198/1031°CNov 2610/1031°C
DecDec 310/1031°CDec 1010/1031°CDec 1710/1031°CDec 2410/1031°C

A specific date? The app computes the same figure day by day.

10-year trend

Annual temperatures — Bangkok

Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.

T° maxT° meanT° min22°24°26°28°30°32°34°201620172018201920202021202220232024202532.8° — decade peak (2024)+0.50°C / decade
Tailor

For your trip

A few angles depending on what kind of trip you are planning.

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Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🏨
Stay
Hotels & rentals · Bangkok
Expedia →
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Activities
Tours, tickets, experiences
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Flights
Multi-airline comparator
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🎟️ Activities & tours · Bangkok

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Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.

Country · Thailand

🗣️LanguageThai
💶CurrencyThai Baht (฿)
🚗DrivingLeft-hand
🛡️Safety ⓘSafe · 2/5
💰Cost of living ⓘCheap · 2/5

🌡️ Climate

🌍Climate typeTropical
📈Climate trend ⓘStable
🔥Hottest monthApril · 35°C
❄️Coolest monthJuly · 31°C
🌧️Rainiest month ⓘSeptember · 60%

🏝️ Tropical stay

🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
Explore

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Nearby destinations

Pattaya · Thailand99 km →Hua Hin · Thailand145 km →Koh Chang · Thailand271 km →Battambang · Cambodia299 km →

Guides & rankings

World ranking 2026See →
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Winter sunSee →
Where to go in JulySee →
Location

Where is Bangkok ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Tropical climate with a 5.9 → 4.5 gap between best and worst month. 10 years of ERA5 data to choose by project.
13.75°N · 100.52°E
Questions

Frequently asked questions

What is the best time to visit Bangkok?
December is the best month with 31.0°C highs, 23.0°C lows, 6.9h of sunshine and 3.0% rainy days.
How many hours of sunshine does Bangkok get in December?
Bangkok averages 6.9 sunshine hours per day in December. It is the sunniest month with a climate score of 5.9/10.
What is the rainiest month in Bangkok?
August is the most unfavourable month with August has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Bangkok in December?
In December, overnight lows reach 23.0°C, while afternoon highs average 31.0°C.
Is Bangkok good in winter?
In winter (December-February), Bangkok scores 5.6/10 on average — Decent period conditions for cultural visits.. The best month overall remains December with a score of 5.9/10.
When should you avoid Bangkok?
August is the most difficult month to visit Bangkok, with August has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.